PT2026863E - Conducting unit, and conducting methods - Google Patents

Abstract

The invention relates to a delivering unit for gas, comprising a compressor (101) in a noise-insulation housing (20, 40), which comprises an inlet opening (27, 66) and a blow-out opening (24, 69, 70). An inlet tube (96) can pneumatically connect the inlet opening to the inlet of the compressor. An outlet tube (96) can connect the blow-out opening to the outlet of the compressor. A noise absorber (60, 80) having an inlet chamber (73, 97) and an outlet chamber (74, 98) may be accommodated in the noise-insulation housing. Neoprene may be used as lining for the inner walls of the noise-insulation housing. Sheets (131. 133) may be provided between the noise-insulation housing and the compressor. An inner heat sink (42) and an inner blower (48, 49) can cool the compressor. A heat sink (41) may form one side (40) of the noise-insulation housing. An outer blower (7) can cool the heat sink. Blind tubes can be used both at the inlet and the outlet, so as to suppress tonal sound. Moreover, the invention relates to corresponding delivering methods.

Description

1

DESCRIPTION " UNIT OF TRANSPORTATION AND PROCESS OF TRANSPORTATION " The area of the invention relates to transport units for therapeutic devices for fixing the upper airways, as well as to transport processes which operate these therapeutic devices. More particularly, the invention relates to transport units and transport processes for TNI devices. The features of the main concepts of the independent claims are known from WO 2005/097244 AI.

TNI devices are known, for example, from WO 02/062413 A2 and are called anti-stress devices. These anti-stress devices lead to a fixation of the upper airways, where air is applied through conventional or modified oxygen goggles on the nose of a wearer. In this way, the pressure in the airways is increased by some mbar above ambient pressure. TNI devices are devices suitable for transnasal insufflation. Continuous positive airway pressure (CPAP) therapy works similarly. In this case, however, nasal or facial masks are used for the application of air at a pressure of 5 mbar and 30 mbar maximum. Since the masks are pressed with a certain pressure at night, therefore over a long period of time, dermal irritations arise and as a consequence problems in terms of acceptance by the patient.

In addition, vaporizers, in particular breath air humidifiers, are known. In conjunction with this invention, it is possible to employ with particular advantage the known vaporizers of WO 2006/012877 AI.

In CPAP devices, 2 radial air blowers are often used, which are very suitable for low pressures of less than 30 mbar, typically 5 mbar and large throughputs of up to 150 L / min. For TNI devices, side channel compressors are most suitable due to the reduced tube diameter and the resulting large pressures on the intake of the 150 mbar nasal goggles. The problem of lateral channel compressors, however, is the high noise output both at the inlet and at the outlet. In addition, the side channel compressor casing cooling fins can be caused to generate vibrations due to large periodic oscillations inside the side channel compressor and thereby emit sound. Finally, it is necessary to carefully think of the side channel compressor cooling, since the efficiency of a side channel compressor is typically below that of the radial fans, and also the production of higher pressures of 150 mbar with the same throughput requires power.

Although the noise production of the radial fans is very moderate compared to the side channel compressors, sound-absorbing boxes are used in CPAP devices, which pressure the sound emission of CPAP devices in the range of 30 dBA. So that the sound is not driven through the air channels outwardly or into the breathing tube, deviations are applied in the soundproofing boxes. In this case, the principle is that it is possible to divert a flow of air, but not the sound that is clearly attenuated with each deviation. Two to three deviations are usual, since each deviation increases the pressure loss coefficient. From WO 2004/046556 A2, a fan unit is known, which among other things, reduces the noise generation through grille in the fan unit. WO 2005/097244 AI discloses a blower device for introducing breathable gas into a patient, and a method for noise reduction in this blower device. The fan device contains an outer housing and an inner housing, which is hung in the outer housing by vibration isolating elements. A gaseous flow generator is located on a lower housing of the inner housing. The gaseous flow generator generates the gaseous flow to the patient. A gas inlet duct extends between a first gas inlet opening in the outer casing and a second gas inlet port in the inner casing. From the second gas inlet port, a turbulence path leads to a third gas inlet port for the gas flow generator in the lower casing. From the gaseous flow generator, in particular from an outlet opening in the lower housing, a second turbulence path leads to a first gas outlet opening in the inner housing, from which a gas outlet conduit leads to an air humidifier, which is connected to a second gas outlet opening in the outer casing. 0 DE 93 10 087 IU discloses an arrangement of a turbine aggregate in a stable square housing, the walls of which are provided within a sound-absorbing coating. On the housing is a turbine aggregate composed of an air turbine and a drive unit on narrow feet. By means of a removable cover of the housing, a suction conduit takes the turbine to air and a pressure conduit away from the air turbine. The object of the invention is to indicate a transport unit and a transporting process which requires or require less material.

This object is achieved by what is set forth in the independent claims.

Preferred embodiments of the invention are subject to the dependent claims.

The flexible connecting pipes between a pre-muffler 4 and a compressor, as well as between the rear muffler and the pre-muffler can surprisingly be advantageous to take on both the air conduction and the mechanical support of the pre-muffler and the compressor, the structure noise transmission being kept low.

A pressure-tight closure by the sound-absorbing housing does not allow any direct sound to come out.

Thereafter, a preferred embodiment of the invention is described in more detail with reference to the accompanying drawings. The Figures show:

Fig. 1 is an exploded representation of a TNI device according to the invention;

2 is an exploded representation of a soundproof housing of the TNI device;

Fig. 3 is an exploded representation of a rear muffler of the TNI device;

Fig. 4 is a top view of the rear muffler;

Fig. 5 is an exploded representation of a pre-muffler of the TNI device;

Fig. 6 is a perspective view of the pre-muffler;

7 is an exploded representation of a structural group of the refrigeration body of the TNI device; and

Fig. 8 is a top view of the structural group of the cooling body. Fig. 1 shows an explosive representation of a TNI device 1 according to the invention. The TNI device 1 essentially comprises a housing bottom 2, a housing cover 3, a housing of the soundproof housing 20 and an external cooling body 41. The ambient air is drawn through a filter cover 5 and a filter foam of air 4 into a filter well 31 in the housing cover 3. At the bottom of the filter well 31 are provided ribs 32, whereby the air filter foam 45 is not directly seated in the bottom of the filter well 31, and thus the air is sucked over the entire width of the air filter foam 4. At the bottom of the filter well 31 there is a bushing 33 through which the first inlet tube 15 is drawn. The first intake tube 15 is shown in Figure 1 in the assembled state and is approximately in the form of a " 5 " without the upper trace. The extra length of the first inlet tube 15 is advantageous for mounting and serves as a soundproofing. The lower end of the first inlet tube 15 is inserted into a T-element 16. From the T-element 16, a second intake tube 17 leads to an inlet nozzle 19, which leads to the intake port 27 of the housing of the sound-absorbing housing 20. For the joining of the inlet nozzle 19 in the inlet port 27, there is provided a seal ring of elastic material, for example silicone. In the T-element 16, there is also an inlet pipe λ / 4 18, the end of which is closed with a plug. A tube closed at one end may be referred to as a blind tube. The side channel compressor 101 generates tonal sound at about 200 Hz, the average frequency of this sound emission being dependent upon the number of rotations of the side channel compressor 101, which in turn depends on the air flow carried, oscillating at about 200 Hz. The three tubes 15, 17 and 18 form a notched filter which suppresses sound frequencies at 200 Hz or which attenuates them at least enough. The length of the first inlet tube 15 is 320 mm. The length of the inlet tube λ / 4 18 is 450 mm and the length of the second intake tube 17 is 300 mm.

In the blowing opening of the sound-absorbing box housing 20 there is a short-winding nozzle 12 with a silencer connection 14, on which is inserted a blow-off muffler 13. The blow-up muffler 13 consists of a blind tube of 500 mm which is wound 6 between a rear side 21 of the housing of the sound-proof housing 20 and the respective wall of the housing cover 3. All the pipes have an inner diameter of 8 mm. The blow muffler 13 also functions as a notch filter at 200 Hz. Since the nasal goggles are attached to the nasal goggles through an air humidifier and since the nasal goggles have a strong sound-absorbing power, soundproofing on the blow-off side is clearly less critical than on the admission side. However, it has been observed that the known air humidifier cap of WO 2006/012877 A1 can be excited with resonance through tonal sound. This can be eliminated more efficiently with the blower muffler 13, which is tuned to the resonance of the air humidifier cover.

At the moment it is not clear how strident the resonance of the air humidifier cover is. Therefore, in another embodiment, it is also possible to tune the muffler to the sound emission of the side channel compressor 101 of about 200 Hz.

In other embodiments, it is also possible to employ complicated embodiments of resonant inlet silencers, in which several λ / 4 tubes connect T elements, to which λ / 4 blind tubes are attached. In this case, each pair of tubes, therefore the tube continuing from a T-element and the blind tube attached to the T-element, is tuned to a different sound wavelength and therefore with a sonic frequency, that is, for example , at 180 Hz, 200 Hz and 220 Hz, with a view to good sound insulation in the range of 170 Hz to 220 Hz through three notches. Thus, sound insulation is also achieved in the case of different amounts of transport and in the case of the different numbers of rotations of the resulting compressor. These multi-stage mufflers can also be employed on the blow side.

It was also found that the typical air flow of 10 to 50 L / min in a TNI device with the large pressure difference between inlet and outlet of 150 mbar (CPAP device: 10 min / min, about 15 mbar) is not sufficient for cool the TNI device sufficiently. Therefore, the external fans 7 are in charge of an airflow of ventilation slots 26 in the bottom of the casing 2, through external cooling bodies 41 passing through the chimney of the fan 6 through the external fan 7 by a network part 8 for ventilation slots 34 in the housing cover 3. For soundproofing purposes, the lower edge of the fan chimney 6 is folded over the entire width of the outer cooling body 41. The outwardly folded part 30 has a height of about of 1 cm.

In view of the insulation against the transmission of structure noise, the housing of the sound-proof housing 20 is disposed on rubber-metal plugs 23 in corresponding recesses in the bottom of the housing 2. In addition, the network part 8 is insulated with a Makrolon insulation sheet 9 relative to the housing of the soundproofing housing 20. The conductive plate 10 is also insulated by an insulating sheet 11 of this type from the housing of the soundproof housing 20. To communicate with the outside world, the driver plate 10 has a Sub- D which can be accessed from the outside through a notch 29 in the bottom of the housing 2. In the part section 25 a plug 28 of the device is mounted.

For better orientation, the left side 22 of the housing of the soundproof housing 20 is marked, the outer cooling body 41 forming the front side. Figure 2 shows an explosive representation of the housing of the sound-proof housing 20. At the front, the structural group of the cooling body 40 has been removed, which is described in more detail in Figures 7 and 8. The interior of the housing of the sound-proof housing is essentially formed by the sound-generating side channel compressor 101 by a pre-muffler 80, which is explained more accurately on the basis of Figures 5 and 6, and by a rear muffler 60, which is described more accurately with based on Figures 3 and 4.

For greater soundproofing, there is provided a mass element 131, a 3 mm silicone foam plug 132, a back wall of mass 133 and an absorbent element 134, and an absorbent rear wall 135. The mass 131 consists of a 1.5 mm thick U-shaped steel plate ST37 covering the upper side and most of the left and right inner side of the housing of the sound-proof housing 20. The rear wall of mass also consists of steel plate ST37 having a thickness of 1.5 mm and inner covering of the rear side 21. The oscillations of the steel sheets generated by sound are damped internally by the absorbent element 134 and the back wall of the absorbent 135, and externally by the silicone foam plug 132. The absorbent member 134 and the back absorbent wall 135 are neoprene having a thickness of 6 mm. Neoprene is thermally stable but less biocompatible than sound-absorbing foam. The absorbent member 134 and the absorbent rear wall 135 dampen the sound before it reaches the mass member 131 and the back mass wall 133. The mass member 131 is on silicone foam pads 64 having a thickness of 2 mm on a cover of the casing 61 of the rear muffler 60. The side portions of the mass member 131 do not therefore reach the underside of the housing of the sound-proof casing 20.

To prevent the transmission of frame noise, the side channel compressor 101, the pre-muffler 80 and the rear muffler 60 are not connected to each other in a fixed manner. Instead, the two tubes 96 and the spacers 95 connect the side channel compressor 101 to the pre-muffler 80. The rear muffler 60 is loosely attached to the pre-muffler 80 also through the tube 71 of another tube and a spacer 72. Only if the device is placed on its side or in the event of the device being hit, for example in transport, is it necessary to ensure by means of stops that the side channel compressor 101 and the pre-muffler 80 do not deviate too far from their intended position. In this case, it is not a problem that the side channel compressor 101 strikes against the absorbent member 134 and the back wall of the absorbent 135. In the front side there is provided an anti-shock guard 47, which is shown in Figures 7 and 8.

Also the blocks 85 with neoprene layer 86 serve as stops if the TNI device is, for example, placed without care. Normally, however, there exists, however, between the lower edges of the cooling body of the side channel compressor 101 and a neoprene layer 86, a gasket having a width of 1-2 mm, so as to prevent a transmission of structure noise. There is similar behavior with the impact protection 65, which, like the supports 64, is made of silicone foam having a thickness of 2 mm. A seal having a width of 1-2 mm between the anti-shock guard 65 and the underside of the pre-muffler 80 is also commonly found. Also between the upper side of the side-channel compressor 101 and the absorbent member 134 is normally a joint of 1-2 mm.

A silicone foam seal 63 having a thickness of 3 mm forms the underside of the rear muffler 60. The seal 63 protrudes over the cover of the housing 61. The protruding parts are folded upwardly into the sides of the cover of the housing 61, the blow apertures being aligned in the housing cover 616 and the seal 636 or 70. In the assembled state, the seal 63 is compressed between the underside of the housing of the soundproof housing 20 and the housing cover 61 Figure 3 shows an explosive representation on the head of the rear muffler 60. The cover of the body 61 has a total of 12 screw holes, whereby the lower side of the housing of the sound-proof housing 20 is pressed, in the assembled state, sufficiently uniform against the cover of the housing 61 and thereby the seal 63 can perform the respective function. The two inlet openings 27 and 66 in the housing of the soundproof housing 20 or the seal 63 are then aligned. The seal 63 consists of silicone foam having a thickness of 3 mm. Within the cover of the housing 61, there are altogether seven chambers, in which the three chambers on the left and the middle chamber are designated by inlet chambers 73 and contribute to soundproofing on the intake side. The three right chambers contribute to sound insulation on the side of the blow and are designated by outlet chambers 74. The air to be applied thus flows from the inlet port 66 through four chambers to an outlet opening 67 through the pre-muffler 80 to the side channel compressor 101 and under overpressure again to the pre-muffler 80 and then from an intake port 68 to the blow port 69.

As mentioned above, there is a pressure difference of about 150 mbar between the inlet side and the outlet side, in particular in order to seal the blowing side with respect to the inlet side and also in relation to the ambient pressure. Approximately the upper half (shown in Figure 3 below) of each chamber is filled in the largest possible area with a cut piece of sound-absorbing foam 62. In one part of the chambers are integrated connections for the outlet opening 67 and the inlet port 68. Also in the case of a cut piece 11 cut to the chamber with the blow aperture 69, there is a corner not to close the blow apertures 69. Figure 4 shows a top view of the casing cover 61 with the outlet opening 67, the intake aperture 68, the supports 64, and the anti-shock protection 65. Figure 5 shows an explosive representation of the pre-muffler 80, consisting essentially of a lower housing cover 81 and an upper housing cover 84. The two covers of the housing 81 and 84 form an inlet chamber 97 and an outlet chamber 98, which are enclosed by a seal 83 pressure-tight with respect to the environment and to each other. In the lower housing cover there is in the two chambers a cut piece of sound-absorbing foam 82. The air enters from the rear muffler 60, through the inlet 91 to the intake chamber 97, and flows through the outlet 92 to the compressor of the side channel 101. Coming from the side channel compressor 101, the conveyed air enters through the inlet 93 in the outlet chamber 98 and exits therefrom through the outlet 94 in the direction of the rear muffler 60.

In the upper housing cover 84 are air-conducting seals 87-90 made of sound-absorbing foam, as well as blocks 85 glued with layers of neoprene 86. As mentioned above, the blocks 85 serve as anti-shock protection. The air-conducting seals 87-90 serve to concentrate the forced convection generated by the refrigerant structural group 40 on the side-channel compressor cooling plate. Figure 6 shows a perspective view of the pre-muffler 80 mounted. Figure 7 shows an explosive representation of the structural group of the cooling body 40. The structural body group of cooling consists essentially of a processed extrusion compression profile forming the outer cooling body 41. The edge 55 of the thick portion which links the cooling fins of the outer cooling body 41 are partly milled so as to enter the milling 56 in the housing of the sound-proof housing 20 and to be fixedly screwed thereon. At the edge of the side of the cooling fins of milling 56, a sealing groove 51 is milled, in which a seal 52 is disposed, so as to connect the outer cooling body 41 in pressure-tight fashion to the housing of the sound-proof housing 20 A notch 53 is additionally milled to serve the passage of cables 55.

On the inner side of the outer cooling body 41 there is milled a notch 54 in which four internal cooling bodies 42 are mounted. In all of the relevant figures 2, 7 and 8, however, only one cooling body interior cooling bodies 42. Inner refrigeration bodies 42 are, in the embodiment shown, Finger cooling bodies. In the inner cooling bodies 42, an air guide plate 50 is screwed. Two inner fans 48 and 49, air conduction seals 43 to 46, are fixed on the air guide plate 50 in turn. shock protection 47. The air conduction seals 43 through 46 serve for the interior fans 48 and 49 to primarily draw air through the cooling ribs of the side channel compressor 101. The air then flows through the inner refrigeration bodies 42 , along the inner side of the absorbent member 134, as well as between the pre-muffler 80 and the rear muffler 60 to the back of the absorber 135, so as to be sucked back through the cooling fins of the side channel compressor 101 The air-conducting seals 43 to 46 consist of sound-absorbing foam and contribute thereby to dampen the sound within the housing of the sound-proof housing 20. 13

The sound-absorbing foam elements 43 adhered to the edges 43-46 do not have sufficient mechanical stability to hold the side-channel compressor 101 attached. To this end, there is provided the anti-shock protection 47, consisting of a polycarbonate block having a layer of neoprene with a thickness of 2 mm. Figure 8 shows a top view of the inner side of the cooling body structural group 40.

Although TNI devices are mainly used for the transport and application of ambient air, it will also be possible to transport other gases. It will also be possible to add to the transported gas a medicament in the form of, for example, aerosols or anesthetic gases. List of references

1 TNI device 2 Housing bottom 3 Housing cover 4 Air filter foam 5 Filter cover 6 Fan chimney 7 External fan 8 Network part 9 Insulating sheet 10 Conductive plate 11 Insulating sheet 12 Blow nozzle 13 Blower silencer 14 Muffler connection 15 First intake tube

16 T-piece 17 Second intake tube 18 Intake tube λ / 4 Intake nozzle 20 Sound-dead box housing 21 Rear side 14 22 Left-hand side 23 Rubber-metal plug 24 Blow nozzle opening 25 Partial section 26 Slots ventilation 27 Intake port 28 Device plug 29 Notch 30 Folded out 31 Filter nozzle 32 Nozzle 33 Bushing 34 Ventilation slots 40 Cooling structural assembly 41 Exterior cooling body 42 Interior cooling body 43-46 air 47 Anti-shock protection 48, 49 Inner fan 50 Air conduction plate 51 Seal groove 52 Seal 53, 54 Notch 55 Bezel 56 Milling 60 Rear muffler 61 Housing cover 62 Sound-proof foam 63 Seal 64 Supports 65 Shock protection 66 Intake port 67 Exit opening 68 Intake port 69, 70 Vent opening 15 71 Tube 72 Spacer 73 Intake chambers 74 Output chambers 80 Pre-silencer 81 Lower housing cover 82 Sound-proofing foam 83 Sealant 84 Upper housing cover 85 Block 86 Neoprene layer 87-90 Air conduction seal 91, 93 Admission 92, 94 Output 95 Spacer 96 Tube 97 Intake chamber 98 Exit chamber 101 Side channel compressor 131 Mass element 132 Silicone foam cap 133 Mass back wall 134 Absorbent element 135 Absorbent back wall 16

REFERENCES REFERRED TO IN THE DESCRIPTION The present list of references cited by the applicant is presented merely for the convenience of the reader. It is not part of the European patent. Although care has been taken during compilation of references, it is not possible to exclude the existence of errors or omissions, for which the EPO assumes no responsibility.

Patents of the invention cited in the disclosure are: WO 2005097244 A1 WO02062413 A2 WO 2006012877 A1 WO 2004046556 A2 DE 9310087 IU [0009]

Claims (15)

A gas transporting unit with: a compressor (101) with an inlet and an outlet; a sound-absorbing housing (20, 40) in which the compressor (101) is located, wherein the sound-absorbing housing (20, 40) has an inlet port (27, 66) and a blow- ); an inlet tube (96), which pneumatically connects the intake opening (27, 66) of the sound-absorbing housing (20, 40) to the inlet of the compressor (101); and an outlet tube (96), which pneumatically connects the blowing aperture (24, 69, 70) of the sound-absorbing housing (20, 40) to the outlet of the compressor (101), characterized in that the intake tube and the outlet tube (96) mechanically support the compressor (101) in the sound-absorbing housing (20, 40). Conveying unit according to claim 1, characterized in that the space outside the compressor (101), inside the sound-absorbing housing (20, 40) and outside the inlet pipe (96) and the outlet pipe (96), is tightly sealed. Transport unit according to one of the preceding claims, characterized in that a silencer (60, 80) is provided inside the sound-absorbing housing (20, 40), having an inlet chamber (73, 97) and a chamber (66, 68, 91, 93) and an outlet (67, 69, 92, 94), the inlet opening (27, 66) of the sound-absorbing housing (20, 40) being pneumatically connected to the inlet (66, 91) of the intake chamber (73, 97), the outlet (67, 92) of the intake chamber (73, 97) being pneumatically connected via the intake tube (96) to the inlet (68, 93) of the outlet chamber (74, 98), the compressor (101) being pneumatically connected via the outlet pipe (96) to the inlet (68, (69, 94) of the outlet chamber (74, 98) pneumatically connected to the blow port (24, 69, 70) of the sound-absorbing housing (20, 40). A conveyor unit according to claim 3, characterized in that the muffler consists of a housing cover (61) and a wall of the sound-absorbing housing (20, 40), a flat seal (63) sealing the outlet chamber (74 ) relative to the intake chamber (73) and to the interior of the sound-absorbing housing (20, 40). Conveying unit according to claim 4, characterized in that, within the sound-absorbing housing (20, 40), between the muffler (60) and the compressor (101), a pre-muffler (80) is applied with a chamber (97) and an outlet chamber (98), each with an inlet (91, 93) and an outlet (92, 94), the outlet (67) of the intake chamber (73) of the muffler (60) pneumatically connected to the intake port 91 of the intake chamber 97 of the pre-muffler 80, the outlet 92 of the intake chamber 97 of the pre-muffler 80 is pneumatically connected to (101) is pneumatically connected to the inlet (93) of the outlet chamber (98) of the pre-muffler (80), the outlet (94) of the outlet chamber ( 98 of the pre-muffler 80 is pneumatically connected to the intake 68 of the exhaust chamber 74 of the muffler 60. Transport unit according to one of the preceding claims, characterized in that four inner sides of the walls of the sound-absorbing housing (20, 40) are partially covered by neoprene (134, 135). Transport unit according to one of the preceding claims, characterized in that four plates (131, 133) are arranged parallel to each of the four walls of the sound-absorbing housing (20, 40) in the space between the sound-absorbing housing (20, 40). ) and the compressor (101), wherein the gap between the plates (131, 133) and the respective wall is approximately twice the thickness of the plates (131, 133). Conveyor unit according to one of the preceding claims, further characterized in that: an interior refrigeration body (42) is installed, which is in thermal contact with an inner side (40) of the sound-absorbing housing; wherein the compressor housing (101) has cooling fins, an inner fan (48, 49), which is placed in the space between the sound-absorbing housing (20, 40) and the compressor (101), thereby serving a air flow between the interior refrigeration body (42) and the cooling fins of the compressor housing (101). Transport unit according to one of the preceding claims, characterized in that a cooling side (40) of the sound-absorbing housing (20, 40) is composed of a cooling body (41) with cooling fins, a fan (7) fixed on a wall (6), wherein the wall (6) connects the cooling fins and the outdoor fan (7) mechanically, so that a flow of air generated by the outdoor fan (7) covers at least 80% of the length of the cooling body (41). A transport unit according to one of the preceding claims, characterized in that a tube (18) is pneumatically connected to the intake opening (27, 66) of the sound-absorbing housing (20, 40). closed at its other end, the length of the tube 18 being about 1/4 of the wavelength of a tone generated by the compressor 101. Conveying unit according to one of the preceding claims, characterized in that a pipe (13) is pneumatically connected to the blowing opening (24, 69, 70) of the sound-absorbing housing (20, 40). is closed at its other end, wherein the length of the tube 13 is about 1/4 of the wavelength of an acoustic radio frequency of a blow-off air humidifier 24, 69, 70. A gas transporting process comprising: conveying gas through a compressor (101) from an inlet of the compressor (101) to an outlet of the compressor (101); conducting the gas through an inlet pipe (96) of an inlet opening (27, 66) of a sound-absorbing housing (20, 40) for the admission of the compressor (101); and driving the gas through an outlet pipe (96), from the outlet of the compressor (101) to a blowing aperture (24, 69, 70) of the sound-absorbing housing (20, 40), characterized by the mechanical support of the compressor 101) through the inlet tube (96) and the outlet tube (96) in the sound-absorbing housing (20, 40). Conveying process according to claim 4, further characterized by a pressure-tight closure of the space outside the compressor (101), inside the sound-absorbing housing (20, 40) and outside the intake tube (96) and the inlet pipe outlet tube (96). Transport method according to one of Claims 12 to 13, further characterized by soundproofing with a silencer (60, 80) outside the sound-absorbing housing (20, 40), having an inlet chamber (73, 97) and a (66, 68, 91, 93) and an outlet (67, 69, 92, 94), the intake port (27) of the sound-absorbing housing (20, 40) connected pneumatically to the inlet (66, 91) of the intake chamber (73, 97), the outlet (67, 92) of the intake chamber (73, 97) being pneumatically connected through the intake tube ( 96 to the inlet of the compressor 101, the outlet 20 of the compressor 101 being pneumatically connected through the outlet tube 96 to the inlet 68, 93 of the outlet chamber 74, 98, the exit chamber (69, 94) of the outlet chamber (74, 98) being pneumatically connected to the blowing aperture (24, 69, 70) of the sound-absorbing housing (20, 40). The transport method according to claim 14, characterized in that the soundproofing inside the sound-absorbing housing (20, 40) is further implemented by means of a pre-silencer (80) with an inlet chamber (97) and a plenum chamber (98).